DE69429448D1 - OPTICAL FILTER - Google Patents
OPTICAL FILTERInfo
- Publication number
- DE69429448D1 DE69429448D1 DE69429448T DE69429448T DE69429448D1 DE 69429448 D1 DE69429448 D1 DE 69429448D1 DE 69429448 T DE69429448 T DE 69429448T DE 69429448 T DE69429448 T DE 69429448T DE 69429448 D1 DE69429448 D1 DE 69429448D1
- Authority
- DE
- Germany
- Prior art keywords
- optical filter
- filter
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29344—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by modal interference or beating, i.e. of transverse modes, e.g. zero-gap directional coupler, MMI
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/14—Mode converters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/14—External cavity lasers
- H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02047—Dual mode fibre
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
- G02B6/2813—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs based on multimode interference effect, i.e. self-imaging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/083—Ring lasers
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Optical Integrated Circuits (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93309089 | 1993-11-12 | ||
EP94301705 | 1994-03-10 | ||
PCT/GB1994/002488 WO1995013552A2 (en) | 1993-11-12 | 1994-11-11 | Optical filter |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69429448D1 true DE69429448D1 (en) | 2002-01-24 |
DE69429448T2 DE69429448T2 (en) | 2002-07-25 |
Family
ID=26134559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69429448T Expired - Lifetime DE69429448T2 (en) | 1993-11-12 | 1994-11-11 | OPTICAL FILTER |
Country Status (6)
Country | Link |
---|---|
US (1) | US5796891A (en) |
EP (1) | EP0728317B1 (en) |
JP (1) | JPH09505154A (en) |
CA (1) | CA2176027C (en) |
DE (1) | DE69429448T2 (en) |
WO (1) | WO1995013552A2 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6198863B1 (en) * | 1995-10-06 | 2001-03-06 | British Telecommunications Public Limited Company | Optical filters |
GB9605011D0 (en) * | 1996-03-08 | 1996-05-08 | Hewlett Packard Co | Multimode communications systems |
SE507445C2 (en) * | 1996-03-22 | 1998-06-08 | Ericsson Telefon Ab L M | Optical element |
JP3251211B2 (en) * | 1997-08-18 | 2002-01-28 | 日本電気株式会社 | Semiconductor receiver |
US6795607B1 (en) * | 2000-10-11 | 2004-09-21 | Ciena Corporation | Use of tunable laser for optical performance monitoring in WDM system |
KR100393609B1 (en) * | 2000-12-14 | 2003-08-02 | 삼성전자주식회사 | Apparatus of reducing loss variation in a multi-channel optical module by means of positional offset |
US6628871B2 (en) * | 2000-12-22 | 2003-09-30 | Nortel Networks Limited | Fiber fuse protection |
US6993224B1 (en) | 2001-11-15 | 2006-01-31 | UNIVERSITé LAVAL | Segmented waveguide array gratings (SWAG)-based archival optical memory |
AU2002342458A1 (en) * | 2001-11-15 | 2003-05-26 | Universite Laval | Array grating filters as segmented waveguide |
US6826207B2 (en) * | 2001-12-17 | 2004-11-30 | Peleton Photonic Systems Inc. | Multi-wavelength laser source based on two optical laser beat signal and method |
JPWO2003104886A1 (en) * | 2002-06-11 | 2005-10-13 | 古河電気工業株式会社 | Wavelength division multiplexing optical regeneration system and wavelength division multiplexing optical regeneration method |
US6836421B2 (en) * | 2002-08-02 | 2004-12-28 | Unity Semiconductor Corporation | Line drivers that fit within a specified line pitch |
US20060090341A1 (en) * | 2004-10-30 | 2006-05-04 | Schroepfer David J | Method of manufacturing solid ring wheel rims |
DE102005000925A1 (en) * | 2005-01-07 | 2006-07-20 | Infineon Technologies Fiber Optics Gmbh | Pins adjusting component for e.g. module adapter, has guide unit with two areas that serves for holding pins, and pressing parts connected with guide unit and exerting radial inwardly acting elastic force on pins |
US7233721B2 (en) * | 2005-09-30 | 2007-06-19 | Corning Incorporated | Low loss spectrally periodic all-fiber filters |
US7894692B2 (en) * | 2009-05-19 | 2011-02-22 | Ipg Photonics Corporation | Method and device for suppressing high-order modes in MM fibers |
US8213750B2 (en) * | 2009-05-20 | 2012-07-03 | Ipg Photonics Corporation | Method and device for suppressing cross-coupling component in multimode fibers |
EP2538253A1 (en) * | 2011-06-23 | 2012-12-26 | Alcatel Lucent | A multimode optical fiber interferometer |
CN103956640B (en) * | 2014-05-20 | 2016-10-05 | 天津理工大学 | A kind of switchable optical fiber laser of wavelength based on Graphene and core shift structure |
CN104409951B (en) * | 2014-11-21 | 2017-08-04 | 天津大学 | A kind of all -fiber mode-locked laser based on multimode interference couplers Kerr effect |
CN109477934B (en) * | 2016-08-03 | 2020-07-31 | 日本电信电话株式会社 | Intermode loss difference compensator and optical amplifier |
CN113131317B (en) * | 2021-03-03 | 2022-05-10 | 长春理工大学 | Tunable mode-locked fiber laser based on single-mode double-eccentric-core structure and control method |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5157457A (en) * | 1974-09-20 | 1976-05-19 | Max Planck Gesellschaft | Dohakanomochiita jikoketsuzohoshiki |
US4176911A (en) * | 1976-04-28 | 1979-12-04 | Bell Telephone Laboratories, Incorporated | Graded index optical fiber |
JPS5468254A (en) * | 1977-11-10 | 1979-06-01 | Fujitsu Ltd | Mode scrambler |
JPS6289003A (en) * | 1985-10-15 | 1987-04-23 | Nippon Telegr & Teleph Corp <Ntt> | Fiber type band pass/stop filter |
EP0246793A3 (en) * | 1986-05-19 | 1988-06-01 | AT&T Corp. | High-power, fundamental transverse mode laser |
US4915468A (en) * | 1987-02-20 | 1990-04-10 | The Board Of Trustees Of The Leland Stanford Junior University | Apparatus using two-mode optical waveguide with non-circular core |
GB2215854B (en) * | 1988-03-26 | 1992-02-26 | Stc Plc | Active optical fibre star couplers |
FR2634906B1 (en) * | 1988-08-01 | 1991-09-13 | Alsthom Cgee | PASSIVE OPTICAL COUPLER FOR POLYMERIC FIBERS |
CA2015211C (en) * | 1989-04-28 | 1993-10-05 | Takao Matsumoto | Optical wavelength demultiplexer |
US4974931A (en) * | 1989-11-13 | 1990-12-04 | At&T Bell Laboratories | Wavelength selective mode couplers |
USRE35516E (en) * | 1990-07-27 | 1997-05-20 | Lucent Technologies Inc. | Adiabatic reflection Y-coupler apparatus |
GB9027658D0 (en) * | 1990-12-20 | 1991-02-13 | Secr Defence | Intensity dividing device |
GB9027657D0 (en) * | 1990-12-20 | 1991-02-13 | Secr Defence | Optical device |
US5067789A (en) * | 1991-02-14 | 1991-11-26 | Corning Incorporated | Fiber optic coupling filter and amplifier |
-
1994
- 1994-11-11 JP JP7513699A patent/JPH09505154A/en active Pending
- 1994-11-11 EP EP95900832A patent/EP0728317B1/en not_active Expired - Lifetime
- 1994-11-11 DE DE69429448T patent/DE69429448T2/en not_active Expired - Lifetime
- 1994-11-11 WO PCT/GB1994/002488 patent/WO1995013552A2/en active IP Right Grant
- 1994-11-11 US US08/646,256 patent/US5796891A/en not_active Expired - Lifetime
- 1994-11-11 CA CA002176027A patent/CA2176027C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2176027C (en) | 2000-01-11 |
WO1995013552A3 (en) | 1995-07-20 |
CA2176027A1 (en) | 1995-05-18 |
WO1995013552A2 (en) | 1995-05-18 |
DE69429448T2 (en) | 2002-07-25 |
EP0728317A1 (en) | 1996-08-28 |
JPH09505154A (en) | 1997-05-20 |
US5796891A (en) | 1998-08-18 |
EP0728317B1 (en) | 2001-12-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE59403063D1 (en) | Optical component | |
DE59509361D1 (en) | Optical component | |
DE59409521D1 (en) | OPTICAL COMPONENT | |
DE69427844T2 (en) | Filter element | |
DE69411222D1 (en) | Narrow-framed Mach-Zehnder filter | |
DE69533248D1 (en) | Tunable optical filter | |
DE69427563T2 (en) | Tunable filter | |
DE69429551D1 (en) | Line filter | |
DE69524183T2 (en) | Optical plastic filter | |
DE69429448D1 (en) | OPTICAL FILTER | |
FI921564A0 (en) | Optical component | |
DE69432814D1 (en) | Optical bandpass filter | |
DE69127390D1 (en) | Optical low pass filter | |
DE69409926T2 (en) | Filter system | |
DE69314580T2 (en) | Optical filter | |
NO931290D0 (en) | OPTICAL FILTER | |
FI932102A0 (en) | Optical bandkabel | |
ATA122493A (en) | FILTER | |
DE59207511D1 (en) | Tunable optical filter | |
DE69314189T2 (en) | FILTER DESIGN | |
DE4396201T1 (en) | Optical visor | |
FI962317A (en) | Filter | |
FI1065U1 (en) | Filter | |
NO944451D0 (en) | Optical filter | |
KR940019781U (en) | Line filter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: IPG PHOTONICS CORP., OXFORD, MASS., US |